This page explains how Kenneth K. Quarshie (USATT# 69866)'s rating went from 1217 to 1167 at the NJTTC Monday League event from 11 Jun 2007. The links below take you to pages that describe various aspects of the rating processor.

The rating processor goes through 4 passes in order. The links take you to pages that provide detailed explanations of the calculations during each of the 4 passes.